PMID: 9547276Jun 20, 1998Paper

Coexistence of nuclear DNA-encoded tRNAVal(AAC) and mitochondrial DNA-encoded tRNAVal(UAC) in mitochondria of a liverwort Marchantia polymorpha

Nucleic Acids Research
K AkashiK Ohyama

Abstract

The liverwort Marchantia polymorpha mitochondrial DNA encodes almost all tRNAs required for mitochondrial translation except for the isoleucine (AUU, AUC) and threonine (ACA, ACG) codons, while the missing tRNAs are supplied in part by the nucleus and imported in mitochondria. In this paper, we report a finding of two radically different nuclear tRNAVal(AAC) genes and import of the corresponding tRNA isoacceptors in M.polymorpha mitochondria. This finding is surprising since the mtDNA encodes the gene for tRNAVal(UAC), which alone was considered sufficient for translating all four valine codons GUN by the U/N wobble mechanism. The present results suggest for the first time that the import of ncDNA-encoded tRNAs may result in decoding overlaps in plant mitochondria. The coexistence of nuclear DNA-encoded tRNAVal(AAC) and mitochondrial DNA-encoded tRNAVal(UAC) in liverwort mitochondria and the significance for the decoding mechanism as well as evolution of tRNA import are discussed.

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Citations

Dec 17, 2008·Current Genetics·Anne-Marie DuchêneLaurence Maréchal-Drouard
Jun 2, 2005·Biochimie·Thalia SalinasAnne-Marie Duchêne
Dec 31, 2003·Journal of Molecular Biology·Delene J Oldenburg, Arnold J Bendich
May 30, 2001·Advanced Drug Delivery Reviews·N S EntelisI A Tarassov
Dec 21, 2000·Trends in Cell Biology·A Schneider, L Maréchal-Drouard
Apr 13, 1999·Nucleic Acids Research·S Brubacher-KauffmannA M Duchêne
May 16, 2003·Molecular and Cellular Biology·Ludovic DelageLaurence Maréchal-Drouard
Apr 1, 2014·Mitochondrion·John D Cupp, Brent L Nielsen
Mar 4, 2015·International Journal of Molecular Sciences·Thalia Salinas-GiegéPhilippe Giegé
Jun 3, 2008·Trends in Biochemical Sciences·Thalia SalinasLaurence Maréchal-Drouard
Oct 26, 2011·Biochimica Et Biophysica Acta·Geng WangMichael A Teitell
Jun 5, 2010·Molecular Plant-microbe Interactions : MPMI·Stephanie A GardinerGary J Muehlbauer
Aug 30, 2017·RNA Biology·Alan C KesslerJuan D Alfonzo
Sep 10, 2018·Biochemistry. Biokhimii︠a︡·N A VerechshaginaI O Mazunin
Aug 21, 2021·Frontiers in Cell and Developmental Biology·Jinliang HuangGeng Wang

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